Speakerphone



FIG. 1 is a perspective view of a speakerphone showing my new design;

FIG. 2 is a side elevational view of the speakerphone;

FIG. 3 is a front elevational view of the speakerphone; and

FIG. 4 is a rear elevational view of the speakerphone. 

The ornamental design for a speakerphone, as shown and described. 